? curtisi Owens, 1973 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Arthropoda class Trilobita order Proetida family Proetidae Name Homonyms ? curtisi Frierson & Utterback, 1916 ? curtisi Kirby, 1837 ? curtisi Durham & Caster, 1963 ? curtisi Owens, 1973 ? curtisi Lacordaire, 1845